includes/specials/SpecialMostlinkedtemplates.php

   1 <?php
   2 /**
   3  * Implements Special:Mostlinkedtemplates
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup SpecialPage
  22  * @author Rob Church <robchur@gmail.com>
  23  */
  24
  25 /**
  26  * Special page lists templates with a large number of
  27  * transclusion links, i.e. "most used" templates
  28  *
  29  * @ingroup SpecialPage
  30  */
  31 class MostlinkedTemplatesPage extends QueryPage {
  32         function __construct( $name = 'Mostlinkedtemplates' ) {
  33                 parent::__construct( $name );
  34         }
  35
  36         /**
  37          * Is this report expensive, i.e should it be cached?
  38          *
  39          * @return bool
  40          */
  41         public function isExpensive() {
  42                 return true;
  43         }
  44
  45         /**
  46          * Is there a feed available?
  47          *
  48          * @return bool
  49          */
  50         public function isSyndicated() {
  51                 return false;
  52         }
  53
  54         /**
  55          * Sort the results in descending order?
  56          *
  57          * @return bool
  58          */
  59         public function sortDescending() {
  60                 return true;
  61         }
  62
  63         public function getQueryInfo() {
  64                 return array(
  65                         'tables' => array( 'templatelinks' ),
  66                         'fields' => array(
  67                                 'namespace' => 'tl_namespace',
  68                                 'title' => 'tl_title',
  69                                 'value' => 'COUNT(*)'
  70                         ),
  71                         'conds' => array( 'tl_namespace' => NS_TEMPLATE ),
  72                         'options' => array( 'GROUP BY' => array( 'tl_namespace', 'tl_title' ) )
  73                 );
  74         }
  75
  76         /**
  77          * Pre-cache page existence to speed up link generation
  78          *
  79          * @param DatabaseBase $db
  80          * @param ResultWrapper $res
  81          */
  82         public function preprocessResults( $db, $res ) {
  83                 if ( !$res->numRows() ) {
  84                         return;
  85                 }
  86
  87                 $batch = new LinkBatch();
  88                 foreach ( $res as $row ) {
  89                         $batch->add( $row->namespace, $row->title );
  90                 }
  91                 $batch->execute();
  92
  93                 $res->seek( 0 );
  94         }
  95
  96         /**
  97          * Format a result row
  98          *
  99          * @param Skin $skin
 100          * @param object $result Result row
 101          * @return string
 102          */
 103         public function formatResult( $skin, $result ) {
 104                 $title = Title::makeTitleSafe( $result->namespace, $result->title );
 105                 if ( !$title ) {
 106                         return Html::element(
 107                                 'span',
 108                                 array( 'class' => 'mw-invalidtitle' ),
 109                                 Linker::getInvalidTitleDescription(
 110                                         $this->getContext(),
 111                                         $result->namespace,
 112                                         $result->title
 113                                 )
 114                         );
 115                 }
 116
 117                 return $this->getLanguage()->specialList(
 118                         Linker::link( $title ),
 119                         $this->makeWlhLink( $title, $result )
 120                 );
 121         }
 122
 123         /**
 124          * Make a "what links here" link for a given title
 125          *
 126          * @param Title $title Title to make the link for
 127          * @param object $result Result row
 128          * @return string
 129          */
 130         private function makeWlhLink( $title, $result ) {
 131                 $wlh = SpecialPage::getTitleFor( 'Whatlinkshere', $title->getPrefixedText() );
 132                 $label = $this->msg( 'ntransclusions' )->numParams( $result->value )->escaped();
 133
 134                 return Linker::link( $wlh, $label );
 135         }
 136
 137         protected function getGroupName() {
 138                 return 'highuse';
 139         }
 140 }